18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciconfig HVC_DRIVER 48c2ecf20Sopenharmony_ci bool 58c2ecf20Sopenharmony_ci help 68c2ecf20Sopenharmony_ci Generic "hypervisor virtual console" infrastructure for various 78c2ecf20Sopenharmony_ci hypervisors (pSeries, iSeries, Xen). 88c2ecf20Sopenharmony_ci It will automatically be selected if one of the back-end console drivers 98c2ecf20Sopenharmony_ci is selected. 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ciconfig HVC_IRQ 128c2ecf20Sopenharmony_ci bool 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ciconfig HVC_CONSOLE 158c2ecf20Sopenharmony_ci bool "pSeries Hypervisor Virtual Console support" 168c2ecf20Sopenharmony_ci depends on PPC_PSERIES 178c2ecf20Sopenharmony_ci select HVC_DRIVER 188c2ecf20Sopenharmony_ci select HVC_IRQ 198c2ecf20Sopenharmony_ci help 208c2ecf20Sopenharmony_ci pSeries machines when partitioned support a hypervisor virtual 218c2ecf20Sopenharmony_ci console. This driver allows each pSeries partition to have a console 228c2ecf20Sopenharmony_ci which is accessed via the HMC. 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ciconfig HVC_OLD_HVSI 258c2ecf20Sopenharmony_ci bool "Old driver for pSeries serial port (/dev/hvsi*)" 268c2ecf20Sopenharmony_ci depends on HVC_CONSOLE 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ciconfig HVC_OPAL 298c2ecf20Sopenharmony_ci bool "OPAL Console support" 308c2ecf20Sopenharmony_ci depends on PPC_POWERNV 318c2ecf20Sopenharmony_ci select HVC_DRIVER 328c2ecf20Sopenharmony_ci select HVC_IRQ 338c2ecf20Sopenharmony_ci default y 348c2ecf20Sopenharmony_ci help 358c2ecf20Sopenharmony_ci PowerNV machines running under OPAL need that driver to get a console 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ciconfig HVC_RTAS 388c2ecf20Sopenharmony_ci bool "IBM RTAS Console support" 398c2ecf20Sopenharmony_ci depends on PPC_RTAS 408c2ecf20Sopenharmony_ci select HVC_DRIVER 418c2ecf20Sopenharmony_ci help 428c2ecf20Sopenharmony_ci IBM Console device driver which makes use of RTAS 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ciconfig HVC_IUCV 458c2ecf20Sopenharmony_ci bool "z/VM IUCV Hypervisor console support (VM only)" 468c2ecf20Sopenharmony_ci depends on S390 && NET 478c2ecf20Sopenharmony_ci select HVC_DRIVER 488c2ecf20Sopenharmony_ci select IUCV 498c2ecf20Sopenharmony_ci default y 508c2ecf20Sopenharmony_ci help 518c2ecf20Sopenharmony_ci This driver provides a Hypervisor console (HVC) back-end to access 528c2ecf20Sopenharmony_ci a Linux (console) terminal via a z/VM IUCV communication path. 538c2ecf20Sopenharmony_ci 548c2ecf20Sopenharmony_ciconfig HVC_XEN 558c2ecf20Sopenharmony_ci bool "Xen Hypervisor Console support" 568c2ecf20Sopenharmony_ci depends on XEN 578c2ecf20Sopenharmony_ci select HVC_DRIVER 588c2ecf20Sopenharmony_ci select HVC_IRQ 598c2ecf20Sopenharmony_ci default y 608c2ecf20Sopenharmony_ci help 618c2ecf20Sopenharmony_ci Xen virtual console device driver 628c2ecf20Sopenharmony_ci 638c2ecf20Sopenharmony_ciconfig HVC_XEN_FRONTEND 648c2ecf20Sopenharmony_ci bool "Xen Hypervisor Multiple Consoles support" 658c2ecf20Sopenharmony_ci depends on HVC_XEN 668c2ecf20Sopenharmony_ci select XEN_XENBUS_FRONTEND 678c2ecf20Sopenharmony_ci default y 688c2ecf20Sopenharmony_ci help 698c2ecf20Sopenharmony_ci Xen driver for secondary virtual consoles 708c2ecf20Sopenharmony_ci 718c2ecf20Sopenharmony_ciconfig HVC_UDBG 728c2ecf20Sopenharmony_ci bool "udbg based fake hypervisor console" 738c2ecf20Sopenharmony_ci depends on PPC 748c2ecf20Sopenharmony_ci select HVC_DRIVER 758c2ecf20Sopenharmony_ci help 768c2ecf20Sopenharmony_ci This is meant to be used during HW bring up or debugging when 778c2ecf20Sopenharmony_ci no other console mechanism exist but udbg, to get you a quick 788c2ecf20Sopenharmony_ci console for userspace. Do NOT enable in production kernels. 798c2ecf20Sopenharmony_ci 808c2ecf20Sopenharmony_ciconfig HVC_DCC 818c2ecf20Sopenharmony_ci bool "ARM JTAG DCC console" 828c2ecf20Sopenharmony_ci depends on ARM || ARM64 838c2ecf20Sopenharmony_ci select HVC_DRIVER 848c2ecf20Sopenharmony_ci select SERIAL_CORE_CONSOLE 858c2ecf20Sopenharmony_ci help 868c2ecf20Sopenharmony_ci This console uses the JTAG DCC on ARM to create a console under the HVC 878c2ecf20Sopenharmony_ci driver. This console is used through a JTAG only on ARM. If you don't have 888c2ecf20Sopenharmony_ci a JTAG then you probably don't want this option. 898c2ecf20Sopenharmony_ci 908c2ecf20Sopenharmony_ciconfig HVC_RISCV_SBI 918c2ecf20Sopenharmony_ci bool "RISC-V SBI console support" 928c2ecf20Sopenharmony_ci depends on RISCV_SBI_V01 938c2ecf20Sopenharmony_ci select HVC_DRIVER 948c2ecf20Sopenharmony_ci help 958c2ecf20Sopenharmony_ci This enables support for console output via RISC-V SBI calls, which 968c2ecf20Sopenharmony_ci is normally used only during boot to output printk. 978c2ecf20Sopenharmony_ci 988c2ecf20Sopenharmony_ci If you don't know what do to here, say Y. 998c2ecf20Sopenharmony_ci 1008c2ecf20Sopenharmony_ciconfig HVCS 1018c2ecf20Sopenharmony_ci tristate "IBM Hypervisor Virtual Console Server support" 1028c2ecf20Sopenharmony_ci depends on PPC_PSERIES && HVC_CONSOLE 1038c2ecf20Sopenharmony_ci help 1048c2ecf20Sopenharmony_ci Partitionable IBM Power5 ppc64 machines allow hosting of 1058c2ecf20Sopenharmony_ci firmware virtual consoles from one Linux partition by 1068c2ecf20Sopenharmony_ci another Linux partition. This driver allows console data 1078c2ecf20Sopenharmony_ci from Linux partitions to be accessed through TTY device 1088c2ecf20Sopenharmony_ci interfaces in the device tree of a Linux partition running 1098c2ecf20Sopenharmony_ci this driver. 1108c2ecf20Sopenharmony_ci 1118c2ecf20Sopenharmony_ci To compile this driver as a module, choose M here: the 1128c2ecf20Sopenharmony_ci module will be called hvcs. Additionally, this module 1138c2ecf20Sopenharmony_ci will depend on arch specific APIs exported from hvcserver.ko 1148c2ecf20Sopenharmony_ci which will also be compiled when this driver is built as a 1158c2ecf20Sopenharmony_ci module. 116